With all that’s new and exciting in the world these days, 21st century humans might begin to think that almost every truly remarkable innovation has happened on our watch. Look! We’ve got carbon nanotubes! Self-driving cars! 3-D printed food! I don’t want to take away from these modern marvels, but I have to say, while we were in Germany recently, we saw a wonder that could turn the world around. [Read more]